Dr. Gireesh Kumar TR ( CSIR-NIO )
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Dr. Gireesh Kumar TR 

Principal Scientist ( Regional centre, Kochi )

DepartmentRC NIO, Kochi (RCC)

Research Interests/SpecializationNutrient Cycling & Biogeochemistry, Chemical processes at benthic boundary layer, Marine Pollution, trace gas cycling

Career at CSIR

Date of Joining CSIR : 2014-08-22
Date of Joining Present Post : 2023-08-22
Date of Retirement : 2043-03-31

Contact Details
 Emailgkumar.nio@csir.res.in
  Office +91 4842393596
Work Details

Work Domain Scientific

Area of WorkMarine Biogeochemistry

People Trained

Number of Ph.D. students supervised (Ongoing & Completed): 4
No of student(s) trained through Internship/Project Work/Dissertation :16

Consultancy/Sponsored Projects
Ongoing Completed
5 2
Grant-in-aid Projects
Ongoing Completed
0 2

 Education
Degree Specialization University Graduation Year
Ph.D Marine Chemistry Cochin University of Science and Technology 2013
M Phil Chemical Oceanography Cochin University of Science and Technology 2007
MSc Hydrochemistry Cochin University of Science and Technology 2005
BSc Chemistry University of Kannur, Kerala 2003
 Experiences
Position Organization From To
Senior Scientist CSIR-National Institute of Oceanography 2019 2020
Scientist CSIR-National Institute of Oceanography 2014 2019
Project Scientist II Integrated Coastal and Marine Area Management (ICMAM) 2013 2013

Publications

  1. Mathew,D., Gireeshkumar, T.R., Balachandran, K.K., Udayakrishnan, P.B., Shameem, K., Deepulal, P.M., Nair, M., Madhu, N.V., Muraleedharan, K.R. 2020. Influence of hypoxia on phosphorus cycling in Alappuzha mud banks, southwest coast of India. Regional Studies in Marine Science, 34, 101083.
  2. Ramzi, A., Gireeshkumar, T.R., Habeeb Rahman, K., Balachandran, K.K., Shameem, K., Chacko, J., Chandramohanakumar, N. 2020. Phthalic acid esters – a grave ecological hazard in Cochin estuary, India. Marine Pollution Bulletin, 152, 110899.
  3. Manju, M.N., Ratheesh Kumar, C.S., Resmi,P., Gireeshkumar, T.R., Manju Mary Joseph, Salas, P.M., Chandramohanakumar, N. 2020. Trace metal distribution in the sediment cores of mangrove ecosystems along northern Kerala coast, southwest coast of India. Marine Pollution Bulletin, 153, 110946
  4. Ramzi, A., Gireeshkumar, T.R., Habeeb Rahman, K., Manu, M., Balachandran, K.K., Chacko, J., Chandramohanakumar, N., 2018. Distribution and contamination status of phthalic acid esters in the sediments of a tropical monsoonal estuary, Cochin – India. Chemosphere 210, 232–238.
  5. Mathew, D., Gireeshkumar, T.R., Udayakrishnan, P.B., Muraleedharan, K.R., Madhu, N. V., Nair, M., C.Revichandran, Balachandran, K.K., 2019. Inter-annual variations in the hydrochemistry of Alappuzha mud banks, southwest coast of India. Continental Shelf Research 177, 42–49.
  6. Gireeshkumar, T.R., Mathew, D., Pratihary, A.K., Naik, H., Narvekar, K.U., Jesly. A., Balachandran, K.K., Muraleedharan, K.R., Thorat, B., Nair, M., Naqvi, S. W. A.., 2017. Influence of upwelling induced near shore hypoxia on the Alappuzha mud banks, South West Coast of India. Continental Shelf Research, 139, 1–8.
  7. Sheeba, V. A., Abdulaziz, A., Gireeshkumar, T. R., Ram, A., Rakesh, P. S., Jasmin, C., Parameswaran, P.S., 2017. Role of heavy metals in structuring the microbial community associated with particulate matter in a tropical estuary. Environmental Pollution, 231, 589–600.
  8. Ramzi, A., Habeeb Rahman, K., Gireeshkumar, T. R., Balachandran, K. K., Jacob, C., & Chandramohanakumar, N. (2017). Dynamics of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of Cochin estuary, India. Marine Pollution Bulletin, 114(2), 1081–1087.
  9. Arunpandi, N., Jyothibabu, R., Jagadeesan, L., Gireeshkumar, T. R., Karnan, C., Naqvi, S. W. A., 2017. Noctiluca and copepods grazing on the phytoplankton community in a nutrient-enriched coastal environment along the southwest coast of India. Environmental Monitoring and Assessment, 189(7), 351.
  10. Resmi ,P., Manju, M.N., Gireeshkumar,T.R., Kumar,R.C.S., Chandramohanakumar, N., 2016. Source characterisation of Sedimentary organic matter in mangrove ecosystems of northern Kerala, India: Inferences from bulk characterisation and hydrocarbon biomarkers, Regional Studies in Marine Science, 7,43-45.
  11. Resmi ,P., Manju, M.N., Gireeshkumar,T.R., Kumar,R.C.S., Movitha,M., Shameem,K., Chandramohanakumar,N., 2016. Phosphorous fractionation in mangrove sediments of Kerala, south west coast of India: the relative importance of inorganic and organic phosphorous fractions. Environmental Monitoring and Assessment, 188:366.
  12. Manju, M.N., Resmi ,P., Kumar,R.C.S., Gireeshkumar,T.R., Chandramohanakumar,N., Joseph, M.M., 2016. Biochemical and stable carbon isotope records of mangrove derived organic matter in the sediment cores. Environmental Earth Science, 75:565.
  13. Gireeshkumar, T.R., Deepulal, P.M., Chandramohanakumar, N., 2015. Distribution and Sources of Aliphatic Hydrocarbons in Surface Sediments of a Tropical Estuary South India (Cochin estuary), Environmental Monitoring and Assessment, 187, 56,
  14. Abdulaziz Anas., Jasmin, C., Sheeba, V.A., Gireeshkumar, T.R., Shanta Nair., 2015. Heavy Metals Pollution Influence the Community Structure of Cyanobacteria in Nutrient Rich Tropical Estuary. Oceanography 2015, 3(1)
  15. Gireeshkumar, T.R., Deepulal, P.M., Chandramohanakumar, N., 2013. Distribution and sources of sedimentary organic matter in a tropical estuary, south west coast of India (Cochin estuary): A baseline study. Marine Pollution Bulletin, 66(1-2), 239–45.
  16. Abilash, K.R., Gireeshkumar, T.R., Venu, S., Raveendran, T.V., 2013. Bio-concentration of trace metals by Saccostrea cucullata (von Born 1778) from Andaman waters, Indian Journal of Geo-marine Sciences, 42 (3) 326-330.
  17. Deepulal P.M., Sujatha C.H., Gireesh Kumar T.R., 2014. Distribution of REEs along continental shelf of south west India, Indian Journal of Geo-marine Sciences, 43 (1) 96-105.
  18. Gireeshkumar, T.R., Deepulal, P.M., Chandramohanakumar, N., 2012. Phosphorous Speciation in Surface Sediments of the Cochin Estuary, Environmental Monitoring and Assessment. 185(3), 2535-2552.
  19. Deepulal, P. M., Gireesh Kumar, T. R., Sujatha, C. H., Rejomon George., 2012. Chemometric study on the trace metal accumulation in the sediments of the Cochin Estuary―Southwest coast of India. Environmental Monitoring and Assessment, 184, 6261–6279.
  20. Deepulal, P.M., Gireeshkumar, T.R., Sujatha, C.H., 2012. Behaviour of REE's in a tropical estuary and adjacent continental shelf Southwest coast of India: Evidence from anomalies. Journal of Earth System Science, 121(5), 1215-1227.
  21. Manju, M.N., Resmi, P, Gireeshkumar, T.R., Ratheesh Kumar C.S., Rahul, R., Joseph, M.M., Chandramohanakumar, N., 2012. Assessment of Water Quality Parameters in Mangrove Ecosystems along Kerala Coast: A Statistical Approach. International Journal of Environmental Research, 6(4), 893-902.
  22. Joseph, M. M., Ratheesh Kumar, C. S., Renjith, K. R., Gireesh Kumar, T. R., Chandramohanakumar, N., 2010. Phosphorus fractions in the surface sediments of three mangrove systems of southwest coast of India. Environmental Earth Sciences, 62(6), 1209-1218.
  23. Ratheesh Kumar, C. S., Joseph, M. M., Gireesh Kumar, T. R., Renjith, K.R., Manju, M. N., Chandramohanakumar, N., 2010. Spatial Variability and Contamination of Heavy Metals in the Inter-tidal Systems of a Tropical Environment. International Journal Environmental Research, 4(4), 691-700.
  24. Joseph, M. M., Ratheeshkumar, C.S., Gireeshkumar, T.R., Renjith, K.R and Chandramohanakumar, N., 2008. Biogeochemistry of surficial sediments in the intertidal systems of a tropical environment. Chemistry and Ecology, 24 (4), 247-258.
  25. Anuradha,V., Byju, K., Rosmine, E., AnuGopinath, Nair, S.M., Chandramohanakumar , N., Prashobpeter, K.J., Gireeshkumar,T.R., Vasundhara,G., 2013. Insilico biological activity of steroids from the marine sponge Axinella carteri. Medicinal Chemistry Research, 22, 1142-1146.
  26. Anuradha, V., Byju, K., Kala Jacob., Anu Gopinath., Prashob Peter, K.J., Gireeshkumar, T.R.,Vasundhara, G., Emilda Rosmine,Harishankar, H.S., Chandramohanakumar, N., S.M. Nair., 2014. Evaluation of biochemical and nutritional potential of seaweeds from Lakshadweep archipelago, Journal of Aquatic Food Product Technology, DOI:10.1080/10498850.2013.798390.
  27. Byju, K., Anuradha, V., Emilda Rosmine., Harishankar, H.S., Anu Gopinath., Prashob Peter, K.J., Gireeshkumar, T.R.,Vasundhara, G., , Chandramohanakumar, N., S.M. Nair., 2015. DPPH scavenging property of active principles from soft coralsarcophyton flexuosum tixier-durivault. Pharmaceutical Chemistry Journal, 49 (3).
  28. Bindu, K. R., Deepulal, P. M., Gireeshkumar, T. R., Chandramohanakumar, N., 2015. Evaluation of heavy metal enrichment in Cochin estuary and its adjacent coast: multivariate statistical approach. Environmental Monitoring and Assessment, 187(8), 519.
 External Profile Links
 Professional Interests
Biogeochemistry and Nutrient Cycling , Marine Pollution Marine Organic Geochemistry, Chemical Processes at benthic boundary layer
 Professional Membership
Ocean Society of India
Society of Aquatic Chemists
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